Iranian negotiator says 'problems' remain in talks

Iran's chief nuclear negotiator Abbas Araghchi said Wednesday that "problems" remain in nuclear talks with world powers and that there can be no deal without a "framework for the removal of all sanctions".
In a live interview with state television from the talks in Switzerland, Araghchi said that "until we have solutions to all problems we cannot have a comprehensive agreement," naming sanctions and research and development as key stumbling blocks.
He said a joint statement on progress made in recent days would be issued later Wednesday in Lausanne, where the negotiations are taking place.